warning lights CHEVROLET SUBURBAN 2020 User Guide

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/24/19
248 Driving and Operating
Turning the Features On or Off
TheXbutton to the left of the
steering wheel is used to turn on or
off the Front and Rear Park Assist.
The indicator light in the button
comes on when the features are on
and turns off when the features
have been disabled.
Front and Rear Park Assist can be
set to Off, On, or On with Towbar
through vehicle personalization. See
“Park Assist” underVehicle
Personalization 0154. If Park Assist
is turned off through vehicle
personalization, the Park Assist
button will be disabled. To turn the
Park Assist on again, select On in
vehicle personalization. The On with
Towbar setting allows for Park
Assist to work properly with an
attached trailer hitch. Turn off Park
Assist when towing a trailer.
To turn the RPA symbols, guidance
lines, or Rear Cross Traffic Alert on
or off, see “Rear Camera” and
“Collision/Detection Systems” under
Vehicle Personalization 0154. On some models, select the guidance
lines button on the infotainment
display to turn them on or off.
Assistance Systems for
Driving
If equipped, when driving the
vehicle in a forward gear, Forward
Collision Alert (FCA), Lane
Departure Warning (LDW), Lane
Keep Assist (LKA), Side Blind Zone
Alert (SBZA), Lane Change Alert
(LCA), and/or Automatic Emergency
Braking (AEB) can help to avoid a
crash or reduce crash damage.
Forward Collision Alert
(FCA) System
If equipped, the FCA system may
help to avoid or reduce the harm
caused by front-end crashes. When
approaching a vehicle ahead too
quickly, FCA provides a red flashing
alert on the windshield and rapidly
beeps or pulses the driver seat.
FCA also lights an amber visual
alert if following another vehicle
much too closely. FCA detects vehicles within a
distance of approximately 60 m
(197 ft) and operates at speeds
above 8 km/h (5 mph). If the vehicle
has Adaptive Cruise Control (ACC),
it can detect vehicles to distances of
approximately 110 m (360 ft) and
operates at all speeds. See
Adaptive Cruise Control
0235.
{Warning
FCA is a warning system and
does not apply the brakes. When
approaching a slower-moving or
stopped vehicle ahead too rapidly,
or when following a vehicle too
closely, FCA may not provide a
warning with enough time to help
avoid a crash. It also may not
provide any warning at all. FCA
does not warn of pedestrians,
animals, signs, guardrails,
bridges, construction barrels,
or other objects. Be ready to take
action and apply the brakes. See
Defensive Driving 0188.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/24/19
Driving and Operating 253
LCA Detection Zones
1. SBZA Detection Zone
2. LCA Detection Zone
The LCA sensor covers a zone of
approximately one lane over from
both sides of the vehicle, or 3.5 m
(11 ft). The height of the zone is
approximately between 0.5 m (1.5 ft)
and 2 m (6 ft) off the ground. The
Side Blind Zone Alert (SBZA)
warning area starts at approximately
the middle of the vehicle and goes
back 5 m (16 ft). Drivers are also
warned of vehicles rapidly
approaching from up to 70 m (230 ft)
behind the vehicle.
How the System Works
The LCA symbol lights up in the
outside mirrors when the system
detects a moving vehicle in the next
lane over that is in the side blind
zone or rapidly approaching that
zone from behind. A lit LCA symbol
indicates it may be unsafe to
change lanes. Before making a lane
change, check the LCA display,
check mirrors, glance over your
shoulder, and use the turn signals.
Left Outside
Mirror DisplayRight Outside
Mirror Display
When the vehicle is started, both
outside mirror LCA displays will
briefly come on to indicate the
system is operating. When the
vehicle is in a forward gear, the left
or right outside mirror display will
light up if a moving vehicle is
detected in the next lane over in that blind zone or rapidly approaching
that zone. If the turn signal is
activated in the same direction as a
detected vehicle, this display will
flash as an extra warning not to
change lanes.
LCA can be disabled. When you
disable LCA, Side Blind Zone Alert
is also disabled. See
“Collision/
Detection Systems” underVehicle
Personalization 0154. If LCA is
disabled by the driver, the LCA
mirror displays will not light up.
When the System Does Not
Seem to Work Properly
The LCA system requires some
driving for the system to calibrate to
maximum performance. This
calibration may occur more quickly if
the vehicle is driving on a straight
highway road with traffic and
roadside objects (e.g., guardrails,
barriers).
LCA displays may not come on
when passing a vehicle quickly, for
a stopped vehicle, or when towing a
trailer. The LCA detection zones
that extend back from the side of

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13566622) - 2020 - CRC - 4/24/19
Index 429
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 308
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 222
Washer . . . . . . . . . . . . . . . . . . . . . . . 306
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 172 Bulb Replacement . . . . . . . . . . . . 316
Folding Mirrors . . . . . . . . . . . . . . . . . . 37
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 248
Four-Wheel Drive . . . . . . . . . . 222, 310
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 410
Front Axle . . . . . . . . . . . . . . . . . . . . . . 310
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 46
Heated and Ventilated . . . . . . . . . . 53
Front Turn Signal Lamps . . . . . . . 316
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 258
Economy, Driving for Better . . . 187
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 261
Filling the Tank . . . . . . . . . . . . . . . 259
Foreign Countries . . . . . . . . . . . . 258
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 132
Low Fuel Warning Light . . . . . . . 143 Management, Active . . . . . . . . . . 214
Prohibited Fuels . . . . . . . . . . . . . . 257
Recommended . . . . . . . . . . . . . . . 257
Top Tier . . . . . . . . . . . . . . . . . . . . . . 256
Full-Size Spare Tire . . . . . . . . . . . . 362
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 320
Fuses and Circuit Breakers . . . 319
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 324, 327
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 329
G
Garage Door Opener . . . . . . . . . . . 163Programming . . . . . . . . . . . . . . . . . 163
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 314
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 134
Engine Oil Pressure . . . . . . . . . . 133
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Odometer . . . . . . . . . . . . . . . . . . . . . 131
Speedometer . . . . . . . . . . . . . . . . . 131
Tachometer . . . . . . . . . . . . . . . . . . . 131
Trip Odometer . . . . . . . . . . . . . . . . 131
Voltmeter . . . . . . . . . . . . . . . . . . . . . 134 Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 126
General Information Service and Maintenance . . . . . 381
Towing . . . . . . . . . . . . . . . . . . . . . . . . 262
Vehicle Care . . . . . . . . . . . . . . . . . . 284
Glass Replacement . . . . . . . . . . . . . 313
Glove Box . . . . . . . . . . . . . . . . . . . . . . 110
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 404
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 315
Hazard Warning Flashers . . . . . . . 171
Head Restraints . . . . . . . . . . . . . . . . . 45
Head-up Display . . . . . . . . . . . . . . . . 150
Headlamps . . . . . . . . . . . . . . . . . . . . . 316Aiming . . . . . . . . . . . . . . . . . . . . . . . . 315
Automatic . . . . . . . . . . . . . . . . . . . . . 170
Bulb Replacement . . . . . . . . . . . . 315
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 170
Flash-to-Pass . . . . . . . . . . . . . . . . . 170
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 315
High-Beam On Light . . . . . . . . . . 143
High/Low Beam Changer . . . . . 169
Lamps On Reminder . . . . . . . . . 144

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13566622) - 2020 - CRC - 4/24/19
Index 431
LightingEntry . . . . . . . . . . . . . . . . . . . . . . . . . 174
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Illumination Control . . . . . . . . . . . 173
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Lights Airbag Readiness . . . . . . . . . . . . . 136
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 140
Brake System Warning . . . . . . . 139
Charging System . . . . . . . . . . . . . 137
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 137
Cruise Control . . . . . . . . . . . . . . . . 144
Door Ajar . . . . . . . . . . . . . . . . . . . . . 144
Flash-to-Pass . . . . . . . . . . . . . . . . . 170
Front Fog Lamp . . . . . . . . . . . . . . 144
High-Beam On . . . . . . . . . . . . . . . . 143
High/Low Beam Changer . . . . . 169
Hill Descent Control . . . . . . . . . . 141
Lane Keep Assist . . . . . . . . . . . . . 141
Low Fuel Warning . . . . . . . . . . . . 143
Seat Belt Reminders . . . . . . . . . . 135
Security . . . . . . . . . . . . . . . . . . . . . . 143
StabiliTrak OFF . . . . . . . . . . . . . . . 142
Tire Pressure . . . . . . . . . . . . . . . . . 142
Tow/Haul Mode . . . . . . . . . . . . . . . 140 Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 142
Traction Off . . . . . . . . . . . . . . . . . . . 141
Locking Rear Axle . . . . . . . . . . . . . . 232
Locks Automatic Door . . . . . . . . . . . . . . . . . 25
Delayed Locking . . . . . . . . . . . . . . . . 25
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lockout Protection . . . . . . . . . . . . . . 26
Power Door . . . . . . . . . . . . . . . . . . . . . 25
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Loss of Control . . . . . . . . . . . . . . . . . 190
Low Fuel Warning Light . . . . . . . . . 143
Low-Profile Tires . . . . . . . . . . . . . . . . 332
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 94
Lumbar Adjustment . . . . . . . . . . . . . . 48 Front Seats . . . . . . . . . . . . . . . . . . . . . 48
M
Magnetic Ride Control . . . . . . . . . . 232
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 395
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 389
Maintenance Schedule . . . . . . . . . 383 Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 392
Transfer Case . . . . . . . . . . . . . . . . 222
Malfunction Indicator Lamp . . . . . 137
Manual Mode . . . . . . . . . . . . . . . . . . . 219
Memory Seats . . . . . . . . . . . . . . . . . . . 50
Messages Engine Power . . . . . . . . . . . . . . . . 154
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 153
Vehicle Speed . . . . . . . . . . . . . . . . 154
Mirror
Child-View . . . . . . . . . . . . . . . . . . . . . . 40
Mirrors Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 40
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 38
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 36
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 38
Manual Rearview . . . . . . . . . . . . . . . 39
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Tilt in Reverse . . . . . . . . . . . . . . . . . . 39
Mirrors, Interior Rearview . . . . . . . . 39
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 339

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13566622) - 2020 - CRC - 4/24/19
436 Index
Towing . . . . . . . . . . . . . . . . . . . . . . . . 367
Vehicle Ahead Indicator . . . . . . . . 141
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 337
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 412
Ventilation, Air . . . . . . . . . . . . . . . . . . 183
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Voltmeter Gauge . . . . . . . . . . . . . . . 134
W
Warning
Brake System Light . . . . . . . . . . . 139
Caution and Danger . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 126
Warnings
Hazard Flashers . . . . . . . . . . . . . . 171
Washer Fluid . . . . . . . . . . . . . . . . . . . 306
Wheels Alignment and Tire Balance . . 349
Different Size . . . . . . . . . . . . . . . . . 348
Replacement . . . . . . . . . . . . . . . . . 350
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Where to Put the Restraint . . . . . . 93
Windows . . . . . . . . . . . . . . . . . . . . . . . . 40
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Windshield
Replacement . . . . . . . . . . . . . . . . . 313
Wiper/Washer . . . . . . . . . . . . . . . . .117
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 197
Winter Tires . . . . . . . . . . . . . . . . . . . . 331
Wiper Blade Replacement . . . . . . 312
Wipers Rear Washer . . . . . . . . . . . . . . . . . .119
Wireless Charging . . . . . . . . . . . . . . 123